Charles terrot



(No Model.) 2 Sheets-Sheet l. C. TBRROT. CIRCULAR KNITTING MACHINE.

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C. TERROT. GIRGULAR KNITTING MACHINE. No. 467,330. l Patented Jan. 19,1892.

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CIRCULAR-KNITTING MACHINE.

SPECIFICATION forming part of Letters Patent No. 467,330, dated January19, 1892.

I pplication filed April 10, 1891. Serial No. 388.372. (No model.)Patented in Germany August 1,1890,No. 55,562, and in France February 2,1891, No. 208,928.

To all whom. t may concern.:

Be it known that I, CHARLES Tensor, a citizen of the Republic of France,residing at Cannst-adt, in the Kingdom of \Vtirtemberg, German Empire,have invented new and useful Improvements in Circular-Knitting Machines,(for which Letters Patent were granted to me in France, No. 208,928,dated February 2, 1891, and in Germany, No. 55,562, dated August 1,1890,) of which the following is a specification.

My invention has reference to circularknitting machines using two ormore threads of different colors, and has for its object to change therelative position of threads, so as to produce a variegated fabric.

To this end my invention consists, essentially, in a circular-knittingmachine having its loop-former provided with means for causing thesinkers to engage the threads and place them in proper order on theneedles, all of which is more fully pointed out in the followingspecicat-ion and claims, and illustrated in the accompanying drawings,in which- Figure 1 is a vertical central crosssection of the machine,part being broken away. Fig. 2 is a front view of the sinkingcam. Figs.3 and 4 are side elevations of lthe sink` ers in different relativepositions. 5 and. 6 are diagrams illustrating the operation. Fig. 7 is afront elevation of the machine. Fig. 8 is a plan view of the machine,part being broken away.

Similar letters and figures indicate corresponding parts throughout theseveral views.

So-calledstripedloopedfabricisproduced, as is well known, by leading tothe needles of a knitting-frame two threads arranged side by side, thesinkers forming two loops of the threads, the inner one of Which willappear on the outside of the fabric, which is turned inside out aftercompletion, the goods then showing the color of the inner loop on theoutside.

If it is desired to produce a variegated design, the relative positionof the threads on the needles must be varied accordingly. This variationot' the relative position of the threads and the production of avariegated design are effected automatically in my improved machine bythe sinkers of the loopformer, (mailleuse.)

In Figs. 1 and 7,f represents the frame of a circular-knitting machine;c, the shaft; c, the needles; o, the rack, and n thepinion for rotatingthe loop-former. t' is a support forming a guide for shaft e, and Z, Z',and 7e the several parts for supporting the shaft m of the loop-former,all as usual in a wellknown type of knitting-machine.

For the production of variegated designs I have changed the constructionof the loopformer by providing it, in addition to the usual body p,fastened to the shaft in., its two guide disks q and r, in the radialslots of which the sinkers 1 and 2 move, and the stationary guide-disks, with an additional stationary guide-disk u for displacing the sinkers2 in a longitudinal direction.A The disks Sand u. are firmly connectedto each other and to the hub s', which is loose on the shaft m, the saiddisks being prevented from rotating by the screw q on the fixed arm It.A number of the sinkers (marked l) are moved in longitudinal directionby recesses oc, Figs. 3 and 4, engaged by the disk s, while others(marked are moved by recesses y, engaged by the disk u. The sinkers areprovided with noses 3 -4 and 5 3, Figs. 3 and 4, and while moving in thedirection indicated by the arrow 7 in Fig. 5 they catch the threads a hbefore entering the needle-range in the following manner: The sinkers 1always catch both threads a and b with both noses 3 and 4, respectively,and form loops therefrom in such a manner that the thread a is to theright of the thread b, Figs. 3 and 4, whereby-the thread d will ap pearon the outside of the finished fabric. Immediately before being sunkbetween the needles and while sunk the sinkers are held against the edgeof the guide uby asinkingcam u,secured to a fixed part of the machine bya bracket 6. The sinkers 2, moved in a longitudinal direction by theedge of the stationary disk a, engaging grooves y, before entering theneedle-range, catch only the front thread b, as shown in Fig. 3; but theedge of u has at this place a bent portion u', as shown in Fig. 5,whereby all the sinkers 2, moving in the direction of the arrow 7, Fig.5, are suddenly moved a certain distance toward the axis of the circularframe and above the needles, so as to carry the thread b, caught by thenose 5, beyond the thread ct before reaching the needle-circles. Thesinkers are then depressed by passing the sinking-cam c, Figs. 1 and 2,during` which operation the nose 3 of sinker 2 catches the thread a.Reference being had to Fig. 6, the meshes placed upon the needles by thesinlzers 2 thus have the thread b to the right of thread a, and

said thread Z) will appear on the outside of the fabric, while themeshes placed by the sinkeis l will have the thread b to the left ofthread a.

According to the distribution of the sinkers 1 and 2, different patternswill be produced, the simplest form being longitudinal colored stripes,as in the case of using but one loopformer, the number of needles beinga multiple of the number of sinkers.

It is evident that different designs may be produced byproportioningproperly the numbers of needles and sinkers l 2 in the same manner asdesigns of tuck-stitches are produced by varying the number of needlesand sinkers in a tuck-stitch wheel.

Since loop-formers may be used of a diameter much larger than that of atuck-stitch Wheel, the variety and size of these striped patterns ismuch greater than that of the usual tuck-stitches.

Vhat 1 claim as my invention isl. Aloop-former for circular-knittingmachines, having sinkers l 2 and guide-disks s u,

whereby of the two threads conducted to the machine one is from time totime placed in front of and in rear of the other upon the needles,substantially as described.

2. In a eircular-lniitting machine, a loopformer having two series ofsinkers, combined with means for causing the sinkers to engage thethreads and place them in proper order on the needles, substantially asdescribed.

In testimony whereof I have signed my name to this speciiication in thepresence of two subscribing Witnesses.

CHARLES TERROT.

Witnesses:

ALBERT HIRTH. HERMANN BAUDER.

